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Did you
know that you can connect to and query the new solidDB database used by Cluster
Aware AIX (CAA)? You can
connect to the solidDB instance and issue SQL queries against the database. In
the following example, I issued two queries: one to list the tables in the
database and another to query information relating to the nodes in the cluster.
The formatting in the second query is a mess, but you get the idea. root@node1:/>
/opt/cluster/solidDB/bin/solsql
-x pwdfile:/etc/cluster/dbpass 'tcp localhost 2188' caa IBM
solidDB SQL... [More]

On the odd occasion, NIM may report that a resource is allocated to a NIM client, when, in fact, it is not. Typically, you’d check that the resource was, in fact, not allocated for use to any NIM client and if it was, you would reset the client; and this would resolve the issue. But if that doesn’t work, you may need to take an additional action to resolve the problem. This doesn’t happen very often but it can frustrate you when it does. Here’s an example of the problem. I try to remove an lpp_source resource but... [More]

OK, it’s
official. The AIX 7 Open Beta is now available for testing! An
overview of the program is available here: https://www14.software.ibm.com/iwm/web/cc/earlyprograms/websphere/aix7ob/index.shtml Essentially
this program is designed to give IBM customers, ISVs and IBM BPs the
opportunity to gain early experience with the latest release of AIX prior to
general availability. This is a great time to join forces and help IBM mould
the next generation of the AIX OS. I got
involved in the AIX 6 Open
Beta back in 2007 . It was a... [More]

A question I received this week from a customer. Hi Chris, Is there a way to find on which processor a process is executing?
If I’ve used binprocessor, ps –emo THREAD, would show which processor a
process is bound too. But when that’s not been used, what are the options? The ps command will
only help if we bind a process to a specific CPU. For example, here we can see
that the bootpd process has been
bound (and then un-bound) on processor 3: # bindprocessor -q The available processors are: 0 1 2 3 # bindprocessor 8585302 3 ... [More]

In a previous post I discussed how you can identify some of the different types of a PowerVM Capacity
on Demand (CoD) activation keys from IBM. Recently I had to Activate Memory Expansion (AME) on a
couple of POWER7 systems. I discovered that all of the keys contained a similar
string. It appears that if a CoD key contains the string CA1F0000000800 then it is safe to assume it will activate
AME for a particular system. e.g. 9741EF3AE6969F17 CA1F0000000800 419D 937A1240F00F5B05 CA1F0000000800 413D And while I’m talking about AME,... [More]

New SEA thread tuning parameters with VIOS level 2.2.2.2 Number of threads (nthreads) Specifies the number of threads in threaded mode, where the value of the thread parameter is 1. This value applies only when the thread mode is enabled. The nthreads attribute can be set to any value between 1 and 128. The default value is 7. Queue size (queue_size) Specifies the queue size for the Shared Ethernet Adapter (SEA) threads in threaded mode where the value of the thread parameter is 1. This attribute indicates the number of packets... [More]

I came across this strange LPM issue recently. Thought I’d share it with you. All the customers VIOS were configured with the viosecure level set to high . When the VIOS is configured with a security profile set to high , PCI or DoD , a new feature is enabled during LPM. This new feature is called “ Secure LPM ”. As a result when you initiate an LPM operation, the “Secure LPM” feature automatically enables the VIOS firewall and configures a secure (ipsec) tunnel for all LPM traffic over the network.... [More]

High End
POWER7 systems, like the POWER7 795, support configurations of up to 256
physical processors. Most of us can only dream of working on a system of this
size. For those of us that are fortunate enough to play with these big boxes,
you may find collecting and reviewing CPU related performance data a challenging
task. With 256
physical POWER7 processors, where each processor has 4 threads enabled (SMT 4),
there will be up to 1024 logical CPUs active on the system. As a consequence, a
lot of performance monitoring data will be... [More]